This is exactly what I was going for. While I may never be as wise and composed as the ancient stoic sages (though TBH I don't really want to be). I still follow stoicism as it has genuinely helped me evolve as a person.
If you'll forgive me for taking the chance to go on a bit of a philosophical ramble, I'd love to explore this subject a bit more.
It is my opinion that the best you can do will always be enough. I may not believe that when I tell it to myself, but when it comes to other people I firmly and wholeheartedly believe that as long as you try your best and put in as much effort as you are able to into being a good person, you have done all you need to. There is no need to be the next great sage, the next Buddha, the next masterful teacher of Stoicism. I think that belief works best in the realm of these individualistic systems of philosophy because they are built on self-reliance. Being able to maintain yourself regardless of external circumstances is the important thing, and striving for goals is great, but (I don't know the name of it, I'm not a Buddhist.) one of the tenets of Buddhism is letting go of goals to pursue mastery of the self. In a way, attempting to be as great as the ancient Stoics would be opposed to the fundamental belief of Stoicism by chasing after the wholly external goal of comparing yourself and your wisdom and composition to that of the original Stoics. This is all my interpretation of Stoicism and Buddhism, but I firmly believe that both sort of fall into a philosophical category of "
From each according to his ability, to each according to his needs." Doing the best that you are feasibly able to to be a Stoic is just as good as being the best Stoic that ever was, because you are fulfilling your potential. Work hard and be strong, but don't try to do more than you can.